mips3: add r4000 and r4400 variants (nw)

src/devices/cpu/mips/mips3.cpp

@@ -102,6 +102,10 @@ static const uint8_t fpmode_source[4] =
 #define ROPCODE(pc)     m_lr32(pc)
 
 
+DEFINE_DEVICE_TYPE(R4000BE,   r4000be_device,   "r4000be",   "MIPS R4000 (big)")
+DEFINE_DEVICE_TYPE(R4000LE,   r4000le_device,   "r4000le",   "MIPS R4000 (little)")
+DEFINE_DEVICE_TYPE(R4400BE,   r4400be_device,   "r4400be",   "MIPS R4400 (big)")
+DEFINE_DEVICE_TYPE(R4400LE,   r4400le_device,   "r4400le",   "MIPS R4400 (little)")
 DEFINE_DEVICE_TYPE(VR4300BE,  vr4300be_device,  "vr4300be",  "NEC VR4300 (big)")
 DEFINE_DEVICE_TYPE(VR4300LE,  vr4300le_device,  "vr4300le",  "NEC VR4300 (little)")
 DEFINE_DEVICE_TYPE(VR4310BE,  vr4310be_device,  "vr4310be",  "NEC VR4310 (big)")

src/devices/cpu/mips/mips3.h

@@ -20,6 +20,10 @@ MIPS III/IV emulator.
 #include "cpu/drcuml.h"
 #include "ps2vu.h"
 
+DECLARE_DEVICE_TYPE(R4000BE, r4000be_device)
+DECLARE_DEVICE_TYPE(R4000LE, r4000le_device)
+DECLARE_DEVICE_TYPE(R4400BE, r4400be_device)
+DECLARE_DEVICE_TYPE(R4400LE, r4400le_device)
 // NEC VR4300 series is MIPS III with 32-bit address bus and slightly custom COP0/TLB
 DECLARE_DEVICE_TYPE(VR4300BE, vr4300be_device)
 DECLARE_DEVICE_TYPE(VR4300LE, vr4300le_device)
@@ -278,6 +282,8 @@ protected:
 	enum mips3_flavor {
 		/* MIPS III variants */
 		MIPS3_TYPE_MIPS_III,
+		MIPS3_TYPE_R4000,
+		MIPS3_TYPE_R4400,
 		MIPS3_TYPE_VR4300,
 		MIPS3_TYPE_R4600,
 		MIPS3_TYPE_R4650,
@@ -633,6 +639,42 @@ private:
 };
 
 
+class r4000be_device : public mips3_device {
+public:
+	// construction/destruction
+	r4000be_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+		: mips3_device(mconfig, R4000BE, tag, owner, clock, MIPS3_TYPE_R4000, ENDIANNESS_BIG, 32)
+	{
+	}
+};
+
+class r4000le_device : public mips3_device {
+public:
+	// construction/destruction
+	r4000le_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+		: mips3_device(mconfig, R4000LE, tag, owner, clock, MIPS3_TYPE_R4000, ENDIANNESS_LITTLE, 32)
+	{
+	}
+};
+
+class r4400be_device : public mips3_device {
+public:
+	// construction/destruction
+	r4400be_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+		: mips3_device(mconfig, R4400BE, tag, owner, clock, MIPS3_TYPE_R4400, ENDIANNESS_BIG, 32)
+	{
+	}
+};
+
+class r4400le_device : public mips3_device {
+public:
+	// construction/destruction
+	r4400le_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+		: mips3_device(mconfig, R4400LE, tag, owner, clock, MIPS3_TYPE_R4400, ENDIANNESS_LITTLE, 32)
+	{
+	}
+};
+
 class vr4300be_device : public mips3_device {
 public:
 	// construction/destruction

src/devices/cpu/mips/mips3com.cpp

@@ -303,6 +303,12 @@ uint32_t mips3_device::compute_prid_register()
 {
 	switch (m_flavor)
 	{
+		case MIPS3_TYPE_R4000:
+			return 0x0400;
+
+		case MIPS3_TYPE_R4400:
+			return 0x0440;
+
 		case MIPS3_TYPE_VR4300:
 			return 0x0b00;